Olive knuckle butt hinge



Sept. 4, 1951 c. J. 5055 2,566,504

OLIVE KNUCKLE BUTT HINGE Filed Aug. 15, 1949 2 Sheets-Sheet 1 r i /0 6 I 4/ y =1. Fig.5 5-

INVENTOR.

Char/e5 J. 60:55

Aim/wags Sept. 4, 1951 c. J. soss OLIVE KNUCKLE BUTT HINGE 2 Shets-Sheet 2 Filed Aug. 15, 1949 INVENTOR J 5055 Patented Sept. 4, 1951 OLIVE KNUCKLE BUTT HINGE Charles Joseph Soss, Bloomfield Hills, Mich., assignor to Soss Manufacturing Company, Detroit, Mich., a corporation of Maine Application August 13, 1949, Serial No. 110,143

3 Claims. 1

This invention relates to olive knuckle butt hinges. It is the object of the invention to cheapen and improve this type of hinge. It has been customary to make these hinges as forgings, but forgings are relatively expensive. It is the oblectof the present invention to make an olive knuckle hinge die casting of sufflcient strength to stand the ordinary wear that it will meet. To this end I provide a suitable reinforcing frame in the form of a sheet metal stamping or a welded wire frame which is inserted between the dies and about which the hinge is cast.

Referring to the drawings:

Fig. 1 is an elevation of the olive knuckle hinge with the reinforcement shown in dotted lines and a part of the knuckle shown in section.

Fig. 2 is a perspective of the reinforcing frame.

Fig. 3 is a section on the line 3-3 of Fig. 1.

Fig. 4 is an elevation of one leaf of another form of the invention.

Fig. 5 is a perspective of the reinforcing frame.

Figs. 6 and 7 are fragmentary perspectives of two other forms of the reinforcing frame.

Fig. 8 is an elevation of the knuckle pin.

These olive knuckle hinges are used on the heavy wood doors in hotels, ofiice and public buildings, and also for residence doors. They can also be used on cabinets and furniture and in other places. They consist of a knuckle l supported on the end of a knuckle arm 2 which is integral with a hinge butt 3. In the type of hinge shown in Fig. 1, the reinforcement is provided by two upright wires 4 and 5 which go into the butt and two horizontal wires 6 and l which are spot welded to the upright wires and reinforce the knuckle supporting arm 2. The ends of wires 6 and 1 have arches 8 and 9 which form the reinforcement for the knuckle l. A knuckle pin I is knurled and cast in one of the knuckles. When the two butts are assembled together this knuckle pin is permanently fastened to one knuckle and seated in a bearing socket in the other knuckle. The two knuckles are spaced by either a ball bearing II or any other form of suitable bearing such as a permanent oil or graphite impregnated bearing.

In the form of the invention shown in Figs. 4 and 5, a sheet metal reinforcement is used. This is a reinforcing member l2 which has the upright blank 13, the knuckle supporting arm M- which has the arch l that provides the reinforcement for the knuckle. The blank l3 has large openings IE to accommodate the screw openings in the finished hinge butt. It also has small perforations I! as has also the knuckle supporting arm I 4 and the arch l5 to permit the die casting metal to run through to properly tie the casting and the reinforcement together.

Figs. 6 and '7 are modifications of the reinforcing member. In Fig. 6 the knuckle reinforcement forms a complete cylinder I8 while in Fig. 7 the knuckle reinforcement is the frustum of a cone I9.

In manufacturing these hinges the reinforcements are placed in the dies and held in. proper position by the spring pressed ejector pins that are used in dies for ejecting the cast article when the dies are opened. When the molten metal is passed into the die under a very considerable pressure, it flows around the reinforcement and the pressure pushes the ejector pins back flush with the wall of the dies. When the pressure is relieved and the dies open, the ejector pins then come into action and eject the casting from the dies.

I can use any suitable die cast metal such as aluminum alloys or die cast zinc base alloys, or any other metal that is suitable to the purpose.

I desire it to be understood that in some hinges the reinforcement can be omitted and simply a plain die casting used if the die casting composition is sufliciently strong and the load that the hinge will bear is not too heavy.

What I claim is:

1. An olive knuckle hinge comprising a pair of members hinged together by a knuckle pin and each member comprising a die cast butt, a die cast olive knuckle, and a die cast knuckle supporting arm all integrated in a casting of die cast metal, and a metal frame including an arm with an arch imbedded in the die casting and the butt, the knuckle, and the knuckle supporting arm.

2. An olive knuckle hinge comprising a pair of members hinged together by a knuckle pin and each member comprising a die cast butt, a die cast olive knuckle, and a die cast knuckle supporting arm all integrated in a casting of die cast metal, and a sheet metal reinforcement frame imbedded in the casting and comprising a sheet metal blank with screw openings imbedded. in the butt and an integral arm and arch for reinforcing the butt, the knuckle, 'and the knuckle supporting arm..

3. An olive knuckle hinge comprising a pair of members hinged together by a knuckle pin and each member comprising a die cast butt, a die cast olive knuckle, and a die cast knuckle supporting arm all integrated in a die casting, and a sheet metal reinforcement imbedded in the casting and comprising a sheet metal blank with 3 screw openings imbedded in the butt and an SHARES J {133 311 'SOSS.

REFERENCES CITED v UNITED STATES PATENTS integral arm and arch for reinforcing the butt,

the knuckle, and the'knuckle supporting arm, the E??? 1 gg June fi said sheet metal blank, arm, and knuckle arch 1784733 Kraft Dec 1930 having perforations to make the die cast metal 5 1808440 Thoma-s mm; 1931 flow through and to thereby tie the reinforcement 2078076 Hines 20 1937 and sti g o et r- 2:085:631

Burdick "flu"... June 29, 1937 

